Sorel's 'Caribou' boots provide exceptional protection from cold and wet winter weather. Made from robust black suede, this pair is fitted with a removable ThermoPlus™ lining that can withstand temperatures of up to -40°C. The seam-sealed construction and handcrafted vulcanized rubber shell are waterproof, and the AeroTrac™ outsole ensures optimum traction on snowy terrain.